Best Sims 3 expansion packs?

I own the game, but through Origin. I'd say that Late Night is a no go because it adds minimal content.

Seasons, Pets and Generations are a must for me.

I don't own it on steam but you can't go wrong with the pets expansion

Then out of the relevant ones you're missing Pets and Seasons. Late Night doesn't add much but it's still fun.

the ultimate pack, imo, is late night + university + pets + seasons + generations. the last three is a must.

I liked Into The Future. No specific reason why.

Seasons, Pets, Ambitions, Generations and University Life. The other ones are kind of meh, just unnecessary stuff.

i like seasons and university life

My favorite are World Adventures for the extra locations and Ambitions for new carreers.

Don't make the mistake I did

I like late night and world adventures

pets + seasons + generations.

Pets and Seasons are a must have. University is fun and the rest are pretty meh.
If you want the annoyance of just having fairies and stuff, then you can get Supernatural. Late Night adds a territory, but the vampires aren't really interesting.

Gotta be Showtime, simply because my mates in Sonic Boom Six translated one of their songs into Simlish for it

Generations and Seasons its a good combo ;)

Pets!